We are on the NE side of a heat dome later in the 6-10 day and beyond. Yeah I got on sneaks, but I need a new pair 'cause basketball courts in the summer got girls there.
Probably helped that the airmass was a bit warmer and held more moisture than typical arctic air masses. So you get that flow and block it, and much more moisture to squeeze out. It wouldn’t take much to get into the DGZ either in this airmass.